.base-card {
  width: 100%;
  background: var(--color-card-bg);
  border-radius: var(--border-radius-medium);
  margin-top: var(--spacing-lg);
  box-shadow: 0 2px 8px var(--color-shadow);
  box-sizing: border-box;
  padding: 0;
  overflow: hidden;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.base-card .card-header {
  padding: 16px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-background-primary);
  border-bottom: 1px solid var(--color-border);
}

.base-card .card-header h3 {
  margin: 0;
  font-size: 1.1em;
  font-weight: 500;
  display: flex;
  align-items: center;
  user-select: none;
  color: var(--color-text-primary);
}

.base-card .card-header svg {
  pointer-events: none;
  user-select: none;
} 